Title: Adapting web-based educational systems for the visually impaired

Authors: Ludek Bartek, Ivan Kopecek

Addresses: Faculty of Informatics, Masaryk University, Botanicka 68a, 60200 Brno, Czech Republic. ' Faculty of Informatics, Masaryk University, Botanicka 68a, 60200 Brno, Czech Republic

Abstract: Some problems related to adapting web-based educational systems to speech form are discussed in this paper. The approach is based on the conversion of HTML to VoiceXML. A characterisation of optimal menu trees for speech-based dialogue systems is presented. Experiments illustrating the effect of the minimality of menu trees are presented as well.

Keywords: HTML to VoiceXML conversion; optimal structure; menu trees; breadth-width problem; web link hierarchies; dialogue systems; web-based education; e-learning; online learning; speech-based dialogue; visual impairment.

DOI: 10.1504/IJCEELL.2007.015047

International Journal of Continuing Engineering Education and Life-Long Learning, 2007 Vol.17 No.4/5, pp.358 - 368

Published online: 06 Sep 2007 *

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